. >>> today, the unthinkable at sandy hook elementary school. >> you can never be prepared for this kind of incident. >> the latest on the investigation with connecticut governor dan malloy, and then grief and guns. a conversation with the colorado govern governor. plus, experts on keeping school safe coping with trauma and profiling a mass murderer, all on this special edition of "state of the union." first, the latest on the newtown murders. this morning connecticut's chief medical examiner will perform autopsies on the gunman and his mother, who was killed at her home. the results will be released during a news conference later today. the names of the victims were made public last night. 12 girls and 8 boys killed, all either 6 or 7 years old. the six adults killed at the school were women. the medical examiner says every victim he saw was hit more than once, and all the wounds he saw were inflicted by the semi-automatic rifle found at the scene. president obama will be here in newtown late this afternoon to meet with the victims' families and speak at an evening memorial. cnn nationa